A developing autumn storm system is expected to trigger severe weather across the central and southern United States to begin the week, according to WeatherNation. Meteorologists reported that the incoming weather pattern will focus strong to severe thunderstorms across portions of the Plains and the Midwest before tracking steadily toward the South and the Central Gulf Coast.
The system signals the arrival of the nation’s secondary severe weather season, a recurring meteorological phase that takes shape as autumn cold air masses plunge southward from northern latitudes to collide with warm, humid air pushing inward from the Gulf of Mexico. WeatherNation reported that a powerful upper-level trough will emerge from the Rocky Mountains on Monday. The advancing trough will support the formation of a surface low-pressure system and a trailing cold front, combining to generate atmospheric instability and severe weather across the middle of the country.
Timeline of storms from the Rockies to the Plains
The convective activity is forecast to begin ahead of the primary frontal passage. According to WeatherNation, isolated severe thunderstorms could form as early as Sunday across parts of eastern New Mexico and far western Texas. Those initial strong storms may linger and continue tracking through the Texas and Oklahoma panhandles into early Monday morning.
By Monday afternoon, the primary threat is projected to shift eastward toward the Interstate 35 corridor. Severe thunderstorm chances are expected to escalate significantly from Oklahoma City to Kansas City over the course of the afternoon hours, gradually shifting slightly farther east as evening approaches. Forecasters warned that storm activity could also erupt farther south across Texas late Monday evening, coalescing into an organized squall line that is anticipated to push south and east across Texas through Tuesday morning.
Severe hazards and flash flood risks
Weather authorities have designated a multi-tier threat zone across the nation’s midsection. A slight risk covers portions of the Central and Southern Plains, while a marginal risk extends southward to the Rio Grande within the Big Bend region of Texas, WeatherNation reported. Forecasters cautioned that all modes of severe weather remain possible within these zones, including tornadoes, damaging straight-line winds and hail.
In addition to wind and hail dangers, heavy rainfall accompanying the frontal boundary raises the potential for isolated or scattered flash flooding. The core of heavy rain and strong storms is forecast to continue progressing east on Tuesday, heading directly toward the South and the Central Gulf Coast. While rainfall is urgently needed across sections of the Lower Mississippi Valley—where extreme and exceptional drought conditions have expanded in recent weeks—meteorologists warned that intense rainfall rates could quickly overwhelm local drainage infrastructure and create localized flooding.
As the cold front advances, forecasters indicated that the precise track and timing of individual storm clusters will dictate where the most intense damage and localized flooding occur through Tuesday.
